Morphometric substantiation of a fixation method choice at surgical correction of spondylolisthesis

The purpose was to reveal patterns of morphometric characteristics variability of lumbar vertebrae and sacrum for a choice of more adequate selection of standard sizes and introduction orientation of corrigent metalware at surgical treatment of spondylolisthesis. Preparations of lumbar vertebrae and sacrum of 60 skeletons, 110 Kt-grams of men and women of the first and second periods of mature age without visible pathology of a backbone and 300 Kt-grams of patients with spondylolisthesis. The data on age variability and sexual dimorphism of lumbar vertebrae and sacrum were obtained. The analysis of results of surgical treatment of 288 patients with spondylolisthesis during 1995-2008 was carried out. 160 patients were managed with preoperative planning, taking into account morphometric characteristics of vertebrae and sacrum since 2003. It is necessary to install and arrange metalware at reduction taking into account features of back structures and forward basic complex of lumbar vertebrae and sacrum; that allows to receive adequate decompression of neurovascu-lar structures in 85-90% cases, reliable correction and stabilization of damaged lumbosacral segments